Question

VA ROG ! ESTE URGENT aratati ca x este patrat perfect d)x=2×(1+2+3+....+124)+5^3
e) x=2^0+2^1+2^2+....+2^2013+1

Answer 1

X=124×125 +125=125(124+1)=125×125=225^2
X=2^2014-1+1=2^2014=(2^1007)^2